FILE - This March 31, 2011 file photo shows Canadian pop star Michael Buble, left, and Argentine actress Luisana Lopilato in Buenos Aires, Argentina. The 37-year-old Canadian singer and his 25-year-old Argentine actress-wife are expecting a baby. They were married in 2011. The couple met in 2009 during a South American concert tour. (AP Photo/Natacha Pisarenko, file)

FILE - This March 31, 2011 file photo shows Canadian pop star Michael Buble, left, and Argentine actress Luisana Lopilato in Buenos Aires, Argentina. The 37-year-old Canadian singer and his 25-year-old Argentine actress-wife are expecting a baby. They were married in 2011. The couple met in 2009 during a South American concert tour. (AP Photo/Natacha Pisarenko, file)